Blog and Forums marked active

I’ve got a new website I’m setting up, and this is my first time using forums. I’m not sure what to tweak so that my forums don’t also activate the “blog” tab.

Currently when you look at my site (http://n7hrc.org), the menus work fine except when you are on the forum menu. When you are on the forum menu, the forum menu AND the blog menu show up as active pages.

What I want is for only the forum menu to show active when you are on the forum page or any of its subpages (subforums).